A Miniaturized Wideband 3 dB Rat-Race Coupler Utilizing Meander Lines

Kazim, J. U. R. , Abbas, H. , Ur Rehman, M. , Alomainy, A., Kocabas, C., Yenigunc, E. O., Abbasi, Q. H. and Imran, M. A. (2022) A Miniaturized Wideband 3 dB Rat-Race Coupler Utilizing Meander Lines. In: 1st International Conference on Microwave, Antennas & Circuits (ICMAC 2021), Islamabad, Pakistan, 21-22 Dec 2021, pp. 1-4. ISBN 9781665400862 (doi: 10.1109/ICMAC54080.2021.9678260)

Abstract

This paper proposes a wideband miniaturized 3 dB 180° rat-race coupler. For ease of fabrication and measurement, the operating frequency of the 180° coupler is designed from 700-960 MHz. Hence, an operating bandwidth of around 30% is achieved at the center frequency of 830 MHz. A size reduction of 95% is accomplished along with a fractional bandwidth of 30%. A meander line configuration is adopted and gaps between the lines are optimized to enhance the capacitance of the structure. The proposed design is fabricated on Rogers 4360 substrate and measured results of the prototype show good agreement with simulated results.

• Item Type: Conference Proceedings
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Kazim, Mr Jalil and Imran, Professor Muhammad and Ur Rehman, Dr Masood and Abbas, Dr Hasan and Abbasi, Professor Qammer
• Authors: Kazim, J. U. R., Abbas, H., Ur Rehman, M., Alomainy, A., Kocabas, C., Yenigunc, E. O., Abbasi, Q. H., and Imran, M. A.
• College/School: College of Science and Engineering; College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering; College of Science and Engineering > School of Engineering > Systems Power and Energy
• ISBN: 9781665400862
• Copyright Holders: Copyright © 2021 The Authors
• First Published: First published in 2021 1st International Conference on Microwave, Antennas & Circuits (ICMAC), 2021, pp. 1-4
• Publisher Policy: Reproduced in accordance with the publisher copyright policy

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